Feed-water heater.



Patented July I6, |901.

J. K. TUMLINSN.

FEED WATER HEATER.

(Application led Oct. 18, 1900.)

(No Model.)

Igazgir.

llnrrnn rnrns' Parenti @reina JOHN KES'FER TOMLNSON, OF PICKAVAY, WEST VIRGNIA.

FEED-WATER HEATER.

SPECFIGATIGN forming part of Letters Patent No. 678,800, dated d 16, 1901. Application tiledOctoher 18, 1900. Serial No. 33,496. (llc .modclr T0 all whom t may concern:

Be it known that 1, JOHN KEsTER ToMLIN- SON, a citizen of the United States, residing at Pickaway, in the`county of Monroe and State of West Virginia, have invented anew and useful Feed-Vater Heater, of which the following is a specication.

This invention relates to feed-water heaters designed for heating feed-water prior to its introduction into a steam-boiler, the object of the invention being to provide a construction wherein the exhaust-steam from the engine may be condensed and the water of condensation conveyed to a hot-well, from which it may be pumped to the boiler, the water in its transit from the pump to the boiler being utilized to effect condensation of other eX- haust-steain and being heated thereby.

Additional objects and advantages of the invention will be evident from the following specification.

In the drawings forming a portion of this specication, and in which like numerals of reference indicate similar parts in the several views, Figure 1 is an elevation showing the heater and a portion of a boiler, the end ot one of. the drums of the heater being removed to show the structure of the drum. Fig. 2 is an elevation of the heater, taken at right angles to Fig. 1, two of the drums and a portion of the base or trunk being shown in section.

Referring now to the drawings, the present heatercomprisesapreferablyrectangular trunk 5, in one wall of which is formed a plurality of openings 6, with which communicate drums 7, which are cylindrical in form. Each of the drums comprises a shell having heads 8 and 9, and connecting which heads ,are steamtubes 10. The outer ends of these tubes 10 communicate with the dome 11 at the outer end of the drum beyond the head 9, this dome being formed by a hollow cap 12, engaged with a flange 13 at the end of the drum, and which cap is held in place by means of a bolt let passed through both heads of the drum and through the cap, a nut upon the outer end of the bolt being adapted to impinge against the cap and hold the cap in place.

Transvcrsely of the trunk 5 are arranged baitle-plates 1G, which are disposed dialnetrically of the openings G, so that the tubes of each drum lie half at one side of the adjacent baffle-plate and half at the opposite side thereof, so that a circulation from the trunk may be had up one series of tubes into the dome 1l and back the other series into the trunk, and so on throughout the entire number ot' drums.

The trunk 5 is disposed vertical, as shown, and the drums extending at right angles thereto lie horizontal and parallel.

Vith the upper end of the trunk 5 is connected the exhaust-pipe 18 from a steam-engine, while at the lower end of the trunk is connected a common form of hot-well 19.

The drums 7 are connected alternately at opposite ends by pipes 20, which communicate with the inclosures of the shells between the heads 8 and 9 thereof, so that water may be forced into the lower drum at one end and will pass from the opposite end of the drum to the adjacent end of the next drum, will then pass longitudinally through this second drum to its opposite end, and then out and to the next drum, so that there will be a zigzag circulation through the series of drums. i

A pump 21 has a suction-pipe 22 connected with the hot-well 19, while its discharge-pipe 23 is connected with the inlet end of the lowermost drum, and the uppermost drum is connected with the boiler 24, that is to be fed.

The steam-feed pipe 25 from the boiler leads to a dome 26, from which leads a pipe 27 to the engine, and connecting the pipe 27 and the exhaust-pipe 18 is a branch pipe 28, including a safety-valve 29, which opens in the direction of the exhaust-pipe, so that any steam that may be blown oft will pass through the heater to be condensed and thence to the hot-well to be returned to the boiler. With this construction it will be seen that the steam which is exhausted, as also any steam that may be blown oft through the safetyvalve, is utilized in the heater to heat the feed-water and is condensed and returned through the drums of the heater, where it is heated and from which it is forced into the boiler.

The branch pipe 2S is provided with a con- IOO trolling globe-valve 30, by means of which the operation af the safety Valve at this point ma57 be prevented.

It will be understood that in practice various modifications of the specific construction shown may be made and that any suitable materials and proportions may be used for the various parts Without departing from the spirit ol the invention.

It Will of course be understood that the temperature to which the water is raised will Within certain limits depend upon the number of drums employed.

YWhat is claimed is 1. A feed-Water heater comprising a trunk divided into compartments, drums having tubes therethrough and disposed for the tubes thereof to communicate with different com partments, removable caps at the outer ends ofthe drums to form domes connecting the tubes of their respective d ru ms7 a bolt passed longitudinally through each drum and its cap and having a nut Vfor engagement with the cap for holding the latter in place, connections between the drums exterior tothe tubes, a pump having its suction-pipe connected with the trunk and having its discharge-pipe connected With the lowermost drum, and a feedpipe connected with the uppermost drum.

2. A feed-Water heater comprising a trunk including compartments, a series of drums having; pipes therethrough, said drums being disposed for certain of their pipes to communicate with one of the compartments and the remaining pipes to communicate with a second compartment, caps for the outer ends 0E the drums forming domes with which the tubes communicate, a bolt passed longitudinally through each drum and the cap thereof and having a nut for engagement with the cap to hold it in place, pipe connections between the alternate ends of the drums, a hot-Well connected with the lower end of the trunk, a pump between the hot-well and the lower drum, a steam-exhaust pipe connected with the upper end of the trunk, and a Water-supply pipe connected with the upper drum.

In testimony that I claim the foregoing:r as my own I have hereto aillixed my si gnature in the presence of two witnesses.

JOI-IN KESTER TOMLINSON.

Witnesses:

J. W. LYNCH, l. C. CAMPBELL. 

